content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * -----------------------------
   * CandlestickRendererTests.java
   * -----------------------------
   * (C) Copyright 2003-2008, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 25-Mar-2003 : Version 1 (DG);
   * 22-Oct-2003 : Added hashCode test (DG);
   * 17-Aug-2006 : Strengthened testEquals() and added testFindRangeBounds()
   *               method (DG);
   * 05-Mar-2007 : Added new field to testEquals() (DG);
   * 08-Oct-2007 : Added tests for new volumePaint field (DG);
   * 22-Apr-2008 : Added testPublicCloneable() (DG);
   *
   */
  
  package org.jfree.chart.renderer.xy;
  
  import org.jfree.chart.util.PublicCloneable;
  import org.jfree.data.Range;
  import org.jfree.data.xy.DefaultOHLCDataset;
  import org.jfree.data.xy.OHLCDataItem;
  import org.jfree.data.xy.OHLCDataset;
  import org.junit.Test;
  
  import java.awt.Color;
  import java.awt.GradientPaint;
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.ObjectInput;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutput;
  import java.io.ObjectOutputStream;
  import java.util.Date;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotSame;
  import static org.junit.Assert.assertNull;
  import static org.junit.Assert.assertSame;
  import static org.junit.Assert.assertTrue;
  
  /**
   * Tests for the {@link CandlestickRenderer} class.
   */
  public class CandlestickRendererTest  {
  
  
  
  
  
      private static final double EPSILON = 0.0000000001;
  
      /**
       * Some checks for the constructor.
       */
      @Test
      public void testConstructor() {
          CandlestickRenderer r1 = new CandlestickRenderer();
  
          // check defaults
          assertEquals(Color.green, r1.getUpPaint());
          assertEquals(Color.RED, r1.getDownPaint());
          assertFalse(r1.getUseOutlinePaint());
          assertTrue(r1.getDrawVolume());
          assertEquals(Color.gray, r1.getVolumePaint());
          assertEquals(-1.0, r1.getCandleWidth(), EPSILON);
      }
  
      /**
       * Check that the equals() method distinguishes all fields.
       */
      @Test
      public void testEquals() {
          CandlestickRenderer r1 = new CandlestickRenderer();
          CandlestickRenderer r2 = new CandlestickRenderer();
          assertEquals(r1, r2);
  
          // upPaint
          r1.setUpPaint(new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f,
                  Color.WHITE));
          assertFalse(r1.equals(r2));
          r2.setUpPaint(new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f,
                  Color.WHITE));
          assertEquals(r1, r2);
  
          // downPaint
          r1.setDownPaint(new GradientPaint(5.0f, 6.0f, Color.green, 7.0f, 8.0f,
                  Color.yellow));
          assertFalse(r1.equals(r2));
          r2.setDownPaint(new GradientPaint(5.0f, 6.0f, Color.green, 7.0f, 8.0f,
                  Color.yellow));
          assertEquals(r1, r2);
  
          // drawVolume
          r1.setDrawVolume(false);
          assertFalse(r1.equals(r2));
          r2.setDrawVolume(false);
          assertEquals(r1, r2);
  
          // candleWidth
          r1.setCandleWidth(3.3);
          assertFalse(r1.equals(r2));
          r2.setCandleWidth(3.3);
          assertEquals(r1, r2);
  
          // maxCandleWidthInMilliseconds
          r1.setMaxCandleWidthInMilliseconds(123);
          assertFalse(r1.equals(r2));
          r2.setMaxCandleWidthInMilliseconds(123);
          assertEquals(r1, r2);
  
          // autoWidthMethod
          r1.setAutoWidthMethod(CandlestickRenderer.WIDTHMETHOD_SMALLEST);
          assertFalse(r1.equals(r2));
          r2.setAutoWidthMethod(CandlestickRenderer.WIDTHMETHOD_SMALLEST);
          assertEquals(r1, r2);
  
          // autoWidthFactor
          r1.setAutoWidthFactor(0.22);
          assertFalse(r1.equals(r2));
          r2.setAutoWidthFactor(0.22);
          assertEquals(r1, r2);
  
          // autoWidthGap
          r1.setAutoWidthGap(1.1);
          assertFalse(r1.equals(r2));
          r2.setAutoWidthGap(1.1);
          assertEquals(r1, r2);
  
          r1.setUseOutlinePaint(true);
          assertFalse(r1.equals(r2));
          r2.setUseOutlinePaint(true);
          assertEquals(r1, r2);
  
          r1.setVolumePaint(Color.BLUE);
          assertFalse(r1.equals(r2));
          r2.setVolumePaint(Color.BLUE);
          assertEquals(r1, r2);
      }
  
      /**
       * Two objects that are equal are required to return the same hashCode.
       */
      @Test
      public void testHashcode() {
          CandlestickRenderer r1 = new CandlestickRenderer();
          CandlestickRenderer r2 = new CandlestickRenderer();
          assertEquals(r1, r2);
          int h1 = r1.hashCode();
          int h2 = r2.hashCode();
          assertEquals(h1, h2);
      }
  
      /**
       * Confirm that cloning works.
       */
      @Test
      public void testCloning() throws CloneNotSupportedException {
          CandlestickRenderer r1 = new CandlestickRenderer();
          CandlestickRenderer r2 = (CandlestickRenderer) r1.clone();
          assertNotSame(r1, r2);
          assertSame(r1.getClass(), r2.getClass());
          assertEquals(r1, r2);
      }
  
      /**
       * Verify that this class implements {@link PublicCloneable}.
       */
      @Test
      public void testPublicCloneable() {
          CandlestickRenderer r1 = new CandlestickRenderer();
          assertTrue(r1 instanceof PublicCloneable);
      }
  
      /**
       * Serialize an instance, restore it, and check for equality.
       */
      @Test
      public void testSerialization() throws IOException, ClassNotFoundException {
  
          CandlestickRenderer r1 = new CandlestickRenderer();
  
              ByteArrayOutputStream buffer = new ByteArrayOutputStream();
              ObjectOutput out = new ObjectOutputStream(buffer);
              out.writeObject(r1);
              out.close();
  
              ObjectInput in = new ObjectInputStream(
                      new ByteArrayInputStream(buffer.toByteArray()));
          CandlestickRenderer r2 = (CandlestickRenderer) in.readObject();
              in.close();
  
          assertEquals(r1, r2);
  
      }
  
      /**
       * Some checks for the findRangeBounds() method.
       */
      @Test
      public void testFindRangeBounds() {
          CandlestickRenderer renderer = new CandlestickRenderer();
  
          OHLCDataItem item1 = new OHLCDataItem(new Date(1L), 2.0, 4.0, 1.0, 3.0,
                  100);
          OHLCDataset dataset = new DefaultOHLCDataset("S1",
                  new OHLCDataItem[] {item1});
          Range range = renderer.findRangeBounds(dataset);
          assertEquals(new Range(1.0, 4.0), range);
  
          OHLCDataItem item2 = new OHLCDataItem(new Date(1L), -1.0, 3.0, -1.0,
                  3.0, 100);
          dataset = new DefaultOHLCDataset("S1", new OHLCDataItem[] {item1,
                  item2});
          range = renderer.findRangeBounds(dataset);
          assertEquals(new Range(-1.0, 4.0), range);
  
          // try an empty dataset - should return a null range
          dataset = new DefaultOHLCDataset("S1", new OHLCDataItem[] {});
          range = renderer.findRangeBounds(dataset);
          assertNull(range);
  
          // try a null dataset - should return a null range
          range = renderer.findRangeBounds(null);
          assertNull(range);
      }
  
  }
  